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环境科学有关论文范例,与学周刊发表文2016年,学周刊发表文资料相关论文摘要怎么写

本论文是一篇环境科学有关论文摘要怎么写,关于学周刊发表文2016年,学周刊发表文资料相关函授毕业论文范文。免费优秀的关于环境科学及图书馆及大气科学方面论文范文资料,适合环境科学论文写作的大学硕士及本科毕业论文开题报告范文和学术职称论文参考文献下载。

2005,asignificantEastCoastcyclonedepositedfrom4tonearly12in.(10–30cm)ofsnowonpartsofthenortheasternUnitedStates.Theheaviestsnowfallandmostrapiddeepeningofthecyclonecoincidedwiththefavorablepositioningofanupper-level,short-wavetroughimmediatelyupstreamofapreexistingsurfacecyclone.Thesurfacecycloneinquestionformedapproximately15hbeforetheheaviestsnowfallalongacoastalfrontinaregionoffrontogenesisandheavyprecipitation.Theincipientsurfacecyclonesubsequentlyintensifiedasitmovedtothenortheast,consistentlygeneratingthestrongestconvectiontotheeast-northeastofthelow-levelcirculationcenter.Theuseofpotentialvorticity(PV)inversiontechniquesandasuiteofmesoscalemodelsimulationsillustratesthattheearlyintensificationoftheincipientsurfacecyclonewasprimarilydrivenbydiabaticeffectsandwasnotcriticallydependentontheupper-levelwave.Thesefacts,takeninconjunctionwiththeobservedstructure,energetics,andLagrangianevolutionoftheincipientsurfacedisturbance,identifyitasadiabaticRossbyvortex(DRV).TheantecedentsurfacevorticityspinupassociatedwiththeDRVphaseofdevelopmentisfoundtobeintegraltothesubsequentrapidgrowth.ThequalitativesimilaritywithanumberofobservedcasesofexplosivecyclogenesisleavesopenthepossibilitythataDRV-likefeatureprisesthepreexistingpositivelow-levelPVanomalyinanumberofcyclogeiceventsthatexhibitatwo-stageevolution.

MonthlyWeatherReview136(6):1878–1897(馆藏纸本,电子版

ams.allenpress./perlserv/request等于get-abstract&,doi等于10.1175%2F2007MWR2257.1)

(孟遂珍选编)

3,FredictionofLandfallingHurricaneswiththeAdvancedHurricaneWRFModel

用先进WRF飓风模式预报着陆飓风

ChristopherDavis等

Real-timeforecastsoffivelandfallingAtlantichurricanesduring2005usingtheAdvancedResearchWeatherResearchandForecasting(WRF)(ARW)Modelatgridspacingsof12and4kmrevealedperformancegenerallypetitivewith,andoccasionallysuperiorto,otheroperationalforecastsforstormpositionandintensity.Recurringerrorsinclude1)excessiveintensificationpriortolandfall,2)insufficientmomentumexchangewiththesurface,and3)inabilitytocapturerapidintensificationwhenobserved.ToaddresstheseerrorsseveralaugmentationsofthebasicmunitymodelhavebeendesignedandtestedaspartofwhatistermedtheAdvancedHurricaneWRF(AHW)model.

环境科学有关论文范例BasedonsensitivitysimulationsofKatrina,theinner-corestructure,particularlythesizeoftheeye,wasfoundtobesensitivetomodelresolutionandsurfacemomentumexchange.TheforecastofrapidintensificationandthestructureofconvectivebandsinKatrinawerenotsignificantlyimproveduntilthegridspacingapproached1km.Couplingtheatmosphericmodeltoacolumnar,mixedlayeroceanmodeleliminatedmuchoftheerroneousintensificationofKatrinapriortolandfallnotedinthereal-timeforecast.

MonthlyWeatherReview136(6):1990–2005(馆藏纸本,电子版

ams.allenpress./perlserv/request等于get-abstract&,doi等于10.1175%2F2007MWR2085.1)

(孟遂珍选编)

4,MesoscaleFeaturesAssociatedwithTropicalCycloneFormationsintheWesternNorthPacific

与西北太平洋热带气旋形成相关的中尺度特征

Cheng-ShangLee等

Themesoscalefeaturesof124tropicalcycloneformationsinthewesternNorthPacificOceanduring1999–2004areinvestigatedthroughlarge-scaleanalyses,satelliteinfraredbrightnesstemperature(TB),andQuickScatterometer(QuikSCAT)oceanicwinddata.Basedonlow-levelwindflowandsurgedirection,theformationcasesareclassifiedintosixsynopticpatterns:easterlywave(EW),northeasterlyflow(NE),coexistenceofnortheasterlyandsouthwesterlyflow(NE–SW),southwesterlyflow(SW),monsoonconfluence(MC),andmonsoonshear(MS).Thenthegeneralconvectioncharacteristicsandmesoscaleconvectivesystem(MCS)activitiesassociatedwiththeseformationcasesarestudiedunderthisclassificationscheme.ConvectionprocessesintheEWcasesaredistinguishedfromthemonsoon-relatedformationsinthattheconvectionislessdeepandclosertotheformationcenter.Fivecharacteristictemporalevolutionsofthedeepconvectionareidentified:(i)singleconvectionevent,(ii)twoconvectionevents,(iii)threeconvectionevents,(iv)gradualdecreaseinTB,and(v)fluctuatingTB,oraslightincreaseinTBbeforeformation.Althoughnodominanttemporalevolutiondifferentiatescasesinthesixsynopticpatterns,evolutionsiiandiiiseemtobethemonroutestakenbythemonsoon-relatedformations.TheoverallpercentageofcaseswithMCSactivityatmultipletimesis63%,andin35%ofcasesmorethanoneMCScoexisted.MostoftheMCandMScasesdevelopmultipleMCSsthatleadtoseveralepisodesofdeepconvection.ThesetwopatternshavethehighestpercentageofcoexistingMCSssuchthatpotentialinteractionbetweenthesesystemsmayplayaroleintheformationprocess.TheMCSsinthemonsoon-relatedformationsaredistributedaroundthecenter,exceptintheNE–SWcasesinwhichclusteringofMCSsisfoundabout100–200kmeastofthecenterduringthe12hbeforeformation.OnaverageonlyoneMCSoccursduringanEWformation,whereasthemeanvalueisaroundtwofortheothermonsoon-relatedpatterns.BoththemeanlifetimeandtimeoffirstappearanceofMCSinEWaremuchshorterthantho

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